CE upstream - Wednesday

Closes gitaly#182, gitlab-ce#31276, #1440, and gitlab-ce#22740

See merge request !1725

gitter badge in the readme pointing to gitlabhq/gitlabhq

See merge request !10968

Remove invalid services with nil or empty type

See merge request !10847

Resolve "Milestone sidebar display incorect number of MR when minimized"

Closes #31292

See merge request !10933

Fix ordering of commits in the network graph.

Closes #30973

See merge request !10936

Lazily set UUID in ApplicationSetting for new installations

Closes gitlab-ee#2246

See merge request !10893

Increase code coverage for admin/cohorts page

See merge request !10964

Update mail gem to 2.6.5

See merge request !10951

Update ldap.md to clarify uid should list the attribute not the value

See merge request !1734

Remove unused code

Closes #31202

See merge request !10897

Use vue files for vue components.

See merge request !10882

Fix checks markup in bug template

See merge request !10963

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Make namespace owner master of project upon creation

Closes #29446

See merge request !10910

- We upgraded `rugged` to 0.25.1.1 in !10286 for %9.1

- Prior to this upgrade, the default sort order for commits returned by
  `Gitlab::Git::Repository#find_commits` was `Rugged::SORT_DATE`, which the
  graph relied on.

- While upgrading `rugged`, the MR also changed this default to
  `Rugged::SORT_NONE`, which broke commit ordering in the graph.

- This commit adds an option to `Gitlab::Git::Repository#find_commits` to sort
  by date, and changes the graph builder `Network::Graph` so it explictly
  requests the `:date` sort order

Remove view fragment caching for project READMEs

Closes #26585 and #29594

See merge request !8838

Allow admins to sudo to blocked users

See merge request !10842

When an admin creates a project in the namespace of a user, that user
automatically gains master access to that project.

The `MarkupHelper#markup` method does everything we need here.

Because the post-processing of the rendered README is dependent on the
context (i.e. the current user), do the post-processing when the
README is being displayed.

It does more than solely GitLab Markdown, so rename to MarkupHelper.